WCBS (AM)

The station's history traces back to 1924, when Alfred H. Grebe started WAHG at 920 AM. WAHG was a pioneering station in New York, and was one of the first commercial radio stations to broadcast from remote locations including horse races and yachting events. Two years later, in 1926, Alfred Grebe changed the station's call sign to WABC (for his Atlantic Broadcasting Company) after concluding a business arrangement with the Ashland Battery Company (which had owned the call sign for a station in Asheville, North Carolina) and moved his studios to West 57th Street, which would not be the last time the station would operate from 57th Street.

In 1928, General Order 40 moved the station's frequency to 970, and the station became a part-time affiliate of the Columbia Broadcasting System, which was looking for a full-time radio presence in New York City (CBS's first flagship was WOR). After a short time broadcasting CBS programming three days a week, CBS president William S. Paley purchased WABC and it became a subsidiary of CBS.

Soon after this purchase the station moved to a new frequency, this time to 860, and would eventually increase its transmitting power from 5,000 to its present 50,000 watts. The station also moved its studios into the CBS headquarters at 485 Madison Avenue (on the corner of 52nd Street). The station, still operating as WABC, featured a mix of local interest programming, ethnic content and music programs from CBS's national feed. As time went by, WABC turned more and more to the national programming provided by CBS and its affiliates, and its broadcast day was influenced by CBS's growing interest in news programming. In 1939, the broadcasting operations were moved across 52nd Street from the headquarters to the new CBS Studio Building.

In 1941, WABC moved to the radio frequency it currently occupies, 880, and changed its call letters to WCBS on November 2, 1946, to identify more closely with its parent network, the Columbia Broadcasting System or CBS, and avoid possible confusion with the rival network of the American Broadcasting Company (ABC), which had begun operation in 1943. As a result, this station has no relation to the longtime ABC radio flagship station on 770 that began in 1921 as WJZ, and has operated as WABC since 1953.

Over the next 20 years WCBS developed a series of radio soap operas, afternoon talk shows and an all night easy listening music show, Music 'til Dawn hosted by Bob Hall and sponsored by American Airlines. During this time WCBS featured well-known personalities including Arthur Godfrey, future CBS News President Bill Leonard, author Emily Kimbrough and folk singer Oscar Brand.

One controversy involving WCBS emerged in the 1950s. One of its daytime hosts, John Henry Faulk, was part of an anti-blacklisting wing (including CBS newsman Charles Collingwood) that took over leadership of the flagship New York chapter of the broadcasters' union AFTRA.

After Faulk and WCBS came under pressure from anti-Communist group Aware, Inc., Faulk and attorney Louis Nizer sued Aware, Inc. for libel, a case often considered one of the key turning points in the battle against McCarthyism. Faulk was supported by fellow CBS broadcaster Edward R. Murrow, who was tipped off to Faulk's plight by Carl Sandburg. According to Murrow biographer Joe Persico, Murrow gave Faulk the money he needed to retain Nizer as his lawyer.[2] Faulk finally won the case in 1963, in the meantime becoming a popular radio personality in his native Texas, and later, a national television personality as a regular in the cast of the country music/humor variety show Hee Haw.

WCBS fired Faulk because of declining ratings while he waited for the case to come to trial,[3] but Stanley Cloud and Lynne Olson's book The Murrow Boys asserted that WCBS executive Arthur Hull Hayes admitted on the stand the station's overall ratings, not Faulk's specifically, had slipped.

The controversy became the subject of the 1975 CBS television movie Fear on Trial, based in part on Faulk's autobiography of the same name.

Since 1924, WCBS has been known for announcing the time consistently every three minutes. This is because during the early 20th century, not all listeners had reliable time pieces. They relied on synchronising their clocks up with the radio almost every day. To this day, WCBS announces the time frequently. On the hour, WCBS plays the iconic and distinctive CBS network "bong" indicating that the time is on the hour (although the station now broadcasts with a 10-second delay). The time is distinctly introduced with "WCBS news time: _:__". This standard practice, with slight variations, is also used at other CBS-affiliated news radio stations nationwide.

By the late 1950s and early 1960s, WCBS evolved into a middle of the road (MOR) music and personality format, which included limited talk programming. Personalities included morning host Jack Sterling, Bill Randle and Lee Jordan. Like many MOR stations at the time, WCBS did mix in softer songs by rock-and-roll artists. Its ratings at the time were ordinary compared to the higher ratings at WOR and WNEW, both of which also had MOR formats and more distinct identities. Through it all, the variety show Arthur Godfrey Time remained a weekday mid-morning staple. Eventually, WCBS gained a foothold in local news coverage (WOR and WNEW's strengths) bolstered by its standing as CBS's flagship radio station.

During the 1960s, CBS chairman William S. Paley was concerned about the station's low ratings, and that concern started a process that would lead to the creation of a news radio format that would become known as "Newsradio 88". This format debuted on August 28, 1967 – although on WCBS-FM, because a small airplane had crashed into and destroyed WCBS's AM antenna tower just a few hours earlier. Its original roster of anchors included Charles Osgood, Ed Bradley, Robert Vaughn (not related to the actor of the same name) and Pat Summerall. Later anchors included veteran newscaster Lou Adler, and others like Jim Donnelly, Harvey Hauptman, Bill Lynch and Gary Maurer.

Initially, the station ran news in the drive time periods but maintained an MOR format during the midday and overnight hours, and within a couple of years, it ran all-news programming for much of the broadcast day except for overnights. "Newsradio 88" began its transformation into an all-news format[4] in 1970, when the overnight American Airlines-sponsored Music Till Dawn ended in January of that year, and completed the process in 1972, when Godfrey's weekday morning variety show came to an end. The station built a reputation as an all-news powerhouse[5] during the 1970s, and has continued with an all-news format to this day.

Although WINS has usually received the higher Arbitron ratings of the two all-news stations, WCBS has had the better ratings in the suburbs because of its stronger, non-directional signal, unlike WINS' directional pattern. Its traffic reports and news coverage includes more of Long Island and Westchester County than WINS, and it occasionally allows room for longer interviews and analysis pieces than does WINS. The station is less tightly formatted than WINS, and formats at a half-hour cycle instead of a 20-minute cycle.[6] Also unlike WINS, WCBS does not change anchors every thirty minutes during its daily schedule. Instead, each solo anchor or anchor team on weekdays has a set shift from 5 AM until 8 PM, with two anchors switching every one or two hours after that. On weekends, anchors also alternate every hour.

In October 2000, WCBS made another physical move, this time from CBS corporate headquarters at 51 West 52nd Street (the building known as "Black Rock") to the CBS Broadcast Center at 524 West 57th Street. Around this time, the station began referring to itself on air as "Newsradio 880". On December 2, 2011, the station moved its operations again to 345 Hudson Street, known as the Hudson Square Broadcast Center, sharing space with CBS Radio's other New York stations.

On February 2, 2017, CBS agreed to merge CBS Radio with Entercom, currently the fourth-largest radio broadcaster in the United States; the sale was conducted using a Reverse Morris Trust so that it would be tax-free. While CBS shareholders retain a 72% ownership stake in the combined company, Entercom is the surviving entity, separating WCBS radio (both 880 and FM 101.1) from WCBS-TV.[7][8] The merger was approved on November 9, 2017, and was consummated on the 17th.[9][10]